Taking calcium and iron together during pregnancy: safe or not?
NCT ID NCT06568315
First seen Nov 01, 2025 · Last updated May 01, 2026 · Updated 25 times
Summary
This study looks at whether pregnant women can take calcium and iron-containing multivitamin supplements at the same time without harming their own or their baby's iron levels. Currently, experts recommend taking them at different times because calcium can block iron absorption. About 3,200 pregnant women in Burkina Faso and Pakistan will either take both supplements together in the morning or take the multivitamin in the morning and calcium in the evening. Researchers will check blood samples from the women during pregnancy and from their newborns at birth to compare iron and hemoglobin levels.
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This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Aga Khan University
RECRUITINGKarachi, Pakistan
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Contact
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Institut Africain de Santé Publique (African Institute of Public Health)
RECRUITINGOuagadougou, Burkina Faso
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